CN210769053U

CN210769053U - 190F-192F cylinder head air inlet and exhaust device

Info

Publication number: CN210769053U
Application number: CN201921607068.0U
Authority: CN
Inventors: 杜辉
Original assignee: Chongqing Guanghe Precision Machinery Co Ltd
Current assignee: Chongqing Guanghe Precision Machinery Co Ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-06-16
Anticipated expiration: 2029-09-25

Abstract

The utility model discloses a 190F-192F cylinder head air inlet and exhaust device, which comprises a cylinder head body, an air inlet channel and an exhaust channel, wherein an air inlet chamber and an exhaust chamber are arranged in the cylinder head body, an air inlet seat ring and an exhaust seat ring are arranged at an outlet of the air inlet chamber and an inlet of the exhaust chamber, the inner diameter of the air inlet seat ring is phi 30-32mm, the inner diameter of the exhaust seat ring is phi 26-28mm, the air inlet chamber and the exhaust chamber are both arranged in a U-shaped groove structure, and the air inlet channel and the exhaust channel are both communicated with the wall of the U-shaped groove; the utility model discloses an increase (air) intake valve, exhaust valve seat circle, inlet chamber and exhaust chamber aperture, make the cylinder head inhale more air under the same condition and burn the improvement fuel effect fully, reach the purpose of raising power, the fuel can reduce harmful substance's emission after abundant burning simultaneously, is favorable to exhausting fast behind the increase of exhaust chamber aperture, reduces the temperature of cylinder head and reaches the stability of whole work process.

Description

190F-192F cylinder head air inlet and exhaust device

Technical Field

The utility model belongs to the technical field of the cylinder head, specifically relate to a 190F-192F cylinder head exhaust apparatus that admits air.

Background

When the 190F-192F general single-cylinder engine works, a piston reciprocates in a cylinder, when the piston is positioned at the top dead center position, a space formed by the top of the piston and the inner surface of a cylinder cover is called a combustion chamber, most of the combustion chambers are arranged on the piston or the cylinder cover in a pit form, and are divided into combustion chambers of a bathtub type, a wedge type, a hemisphere type and the like according to the pit form, an air inlet and exhaust device plays an extremely important role in the whole combustion process of the combustion chamber of the engine, and actually, the problems that the power of the 190F-192F general gasoline engine is greatly reduced and fluctuated under the condition of long-time full power, a new emission standard cannot meet requirements and the like exist in the practical use process.

Disclosure of Invention

In view of this, the utility model aims at providing a 190F-192F cylinder head exhaust apparatus that admits air, this 190F-192F cylinder head exhaust apparatus that admits air makes the cylinder head inhale more air under the same condition and carry out abundant burning and improve the fuel effect through increase intake valve and exhaust valve seat circle and inlet chamber and exhaust chamber aperture rather than corresponding, reach the purpose that raises the power, the fuel can reduce harmful substance's emission after abundant burning simultaneously, be favorable to exhausting fast after the increase of exhaust chamber aperture, the temperature that reduces the cylinder head reaches whole acting process's stability.

In order to achieve the purpose, the utility model relates to a 190F-192F cylinder head air inlet and exhaust device, which comprises a cylinder head body, wherein an inclined air inlet channel and an inclined exhaust channel are respectively arranged at two ends of the cylinder head body, a combustion chamber is arranged at the bottom of the cylinder head body, a cylinder head mounting surface which is attached to a cylinder body is arranged around the combustion chamber of the cylinder head body, the combustion chamber is wedge-shaped on the cylinder head body, an air inlet valve, an exhaust valve and a spark plug are arranged on the chamber wall of the combustion chamber, an air inlet chamber which is communicated with the air inlet channel and an exhaust chamber which is communicated with the exhaust channel are arranged in the cylinder head body, an air inlet seat ring which is sleeved on the air inlet valve and an exhaust seat ring which is sleeved on the exhaust valve are respectively arranged at an outlet of the air inlet chamber and an inlet of the exhaust chamber, the inner diameter of the, the air inlet chamber and the air outlet chamber are both arranged in a U-shaped groove structure, and the air inlet channel and the air outlet channel are both communicated with the wall of the U-shaped groove.

Furthermore, the inner diameter of the inlet valve seat ring is phi 31mm, and the inner diameter of the exhaust valve seat ring is phi 27 mm.

Further, the depth of the U-shaped groove is 28-30.5 mm.

Further, the depth of the U-shaped groove is set to be 30 mm.

Furthermore, the chamber wall of the combustion chamber is provided with an inclined plane, an air inlet side wall and an air outlet side wall, one end of the inclined plane is far away from the spark plug and is close to the end face of the cylinder head, the other end of the inclined plane inclines towards the spark plug, the air inlet side wall and the air outlet side wall start from the closest point of the inclined plane and the end face of the cylinder head, end at one end of the inclined plane close to the spark plug and are formed between the end face of the cylinder head and the edge of the inclined plane, and the length of the air outlet side wall is greater.

Further, an included angle between the inclined surface and the cylinder head mounting surface is set to be 12.5 degrees.

Further, the included angle α between the air inlet channel and the bottom surface of the cylinder head body is 36 degrees, and the included angle β between the air outlet channel and the bottom surface of the cylinder head body is 8 degrees.

The beneficial effects of the utility model reside in that:

the utility model discloses 190F-192F cylinder head exhaust apparatus that admits air is through increase (air) intake valve and exhaust valve seat circle and inlet chamber and exhaust chamber aperture rather than corresponding, make the cylinder head inhale more air under the same condition and burn the improvement fuel effect fully, reach the purpose of raising the power, the fuel can reduce harmful substance's emission after abundant burning simultaneously, be favorable to exhausting fast behind the increase of exhaust chamber aperture, the temperature that reduces the cylinder head reaches the stability of whole work process.

Drawings

In order to make the purpose, technical scheme and beneficial effect of the utility model clearer, the utility model provides a following figure explains:

FIG. 1 is a schematic structural diagram of a conventional 190F-192F cylinder head intake and exhaust device;

FIG. 2 is a schematic structural view of the air intake and exhaust device of the 190F-192F cylinder head of the present invention;

FIG. 3 is a cross-sectional view of the intake device of the intake and exhaust device of the 190F-192F cylinder head of the present invention;

fig. 4 is a cross-sectional view of the exhaust device of the air intake and exhaust device of the 190F-192F cylinder head of the present invention.

Reference numerals: 1-a cylinder head body; 2-a combustion chamber; 3-an intake passage; 4-an exhaust channel; 5-an air inlet seat ring and 6-an air inlet valve; 7-an exhaust valve; 8-exhaust seat ring; 9-an air inlet chamber; 10-an exhaust chamber; 11-inclined plane; 12-an air intake sidewall; 13-exhaust sidewall.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Fig. 1-4 show the structure of the air inlet and exhaust device of the 190F-192F cylinder head of the present invention; the utility model relates to a 190F-192F cylinder head exhaust apparatus that admits air, including cylinder head body 1, cylinder head body 1 both ends are equipped with inlet channel 3 and the exhaust passage 4 of slope respectively, there is combustion chamber 2 cylinder head body 1 bottom, cylinder head body 1 is located around combustion chamber 2 and is provided with the cylinder head installation face with cylinder block laminating, combustion chamber 2 is the wedge on cylinder head body 1, be provided with intake valve 6, exhaust valve 7 and spark plug on the locular wall of combustion chamber 2, be provided with the inlet chamber 9 that communicates with inlet channel 3 and the exhaust chamber 10 that communicates with exhaust passage 4 in cylinder head body 1, inlet chamber 9 exit and exhaust chamber entrance are provided with respectively the exhaust seat circle of air inlet seat circle 5 and the exhaust seat circle of suit on exhaust valve 7 of suit on intake valve 6, the internal diameter of inlet valve seat circle 5 is phi 30-32mm, the inner diameter of the exhaust valve seat ring is phi 26-28mm, the air inlet chamber 9 and the air outlet chamber 10 are both arranged in a U-shaped groove structure, and the air inlet channel 3 and the air outlet channel 4 are both communicated with the wall of the U-shaped groove.

The embodiment makes the cylinder head suck more air to fully burn and improve the heat effect under the same condition by increasing the inlet valve and the exhaust valve seat ring as well as the corresponding air inlet chamber and the exhaust chamber aperture, thereby achieving the purpose of improving the power, simultaneously reducing the emission of harmful substances after the fuel oil is fully burnt, being beneficial to quickly exhausting after the aperture of the exhaust chamber is increased, and reducing the temperature of the cylinder head to achieve the stability of the whole acting process.

In a preferred embodiment, the inner diameter of the intake valve seat ring 5 is phi 31mm, and the inner diameter of the exhaust valve seat ring is phi 27mm, in this embodiment, the inner diameters of the intake valve seat ring 5 and the exhaust valve seat ring are further determined, wherein the inner diameter of the intake valve seat ring 5 is larger than the inner diameter of the exhaust valve seat ring, which is beneficial to enabling the cylinder head to suck more air to perform sufficient combustion under the same condition, so that the heat effect is improved, and the working efficiency of the cylinder is improved.

In a preferred embodiment, the depth of the U-shaped groove is 28-30.5 mm, the depth of the U-shaped groove is 30mm, and the structure further limits the structures of the air inlet chamber 9 and the air outlet chamber 10, so that the cylinder head can suck more air under the same condition to fully burn, the heat effect is improved, and the purpose of improving the power is achieved.

In a preferred embodiment, the chamber wall of the combustion chamber 2 is provided with an inclined surface 11, an air inlet side wall 12 and an air outlet side wall 13, one end of the inclined surface 11 is far away from the spark plug and close to the end surface of the cylinder head, the other end of the inclined surface is inclined towards the spark plug, the air inlet side wall 12 and the air outlet side wall 13 start from the closest point of the inclined surface and the end surface of the cylinder head, end at the end of the inclined surface close to the spark plug and are formed between the end surface of the cylinder head and the edge of the inclined surface, and the length of the air outlet side wall is greater than that of the air inlet side wall.

In a preferred embodiment, an included angle between the inclined surface 11 and the cylinder head mounting surface is set to be 12.5 °, an included angle α between the air inlet channel 3 and the bottom surface of the cylinder head body 1 is 36 °, and an included angle β between the air outlet channel 4 and the bottom surface of the cylinder head body 1 is 8 °, which is beneficial to enabling the cylinder head to suck more air to fully combust under the same condition, so that the heat effect is improved, and the purpose of improving the power is achieved.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a 190F-192F cylinder head exhaust apparatus that admits air, includes cylinder head body, cylinder head body both ends are equipped with inclined inlet channel and exhaust passage respectively, there is the combustion chamber cylinder head body bottom, cylinder head body is located the combustion chamber and is provided with the cylinder head installation face with the cylinder block laminating around, the combustion chamber is the wedge on cylinder head body, be provided with (air) intake valve, exhaust valve and spark plug on the locular wall of combustion chamber, its characterized in that: the cylinder head is characterized in that an air inlet chamber communicated with an air inlet channel and an air outlet chamber communicated with an air outlet channel are arranged in the cylinder head body, an air inlet seat ring sleeved on an air inlet valve and an air outlet seat ring sleeved on an air outlet valve are respectively arranged at an outlet of the air inlet chamber and an inlet of the air outlet chamber, the inner diameter of the air inlet seat ring is phi 30-32mm, the inner diameter of the air outlet seat ring is phi 26-28mm, the air inlet chamber and the air outlet chamber are both of a U-shaped groove structure, and the air inlet channel and the air outlet channel are both.

2. The 190F-192F cylinder head intake and exhaust system according to claim 1 wherein: the inner diameter of the inlet valve seat ring is phi 31mm, and the inner diameter of the exhaust valve seat ring is phi 27 mm.

3. The 190F-192F cylinder head intake and exhaust system according to claim 1 wherein: the depth of the U-shaped groove is 28-30.5 mm.

4. The 190F-192F cylinder head intake and exhaust system according to claim 3 wherein: the depth of the U-shaped groove is set to be 30 mm.

5. The 190F-192F cylinder head intake and exhaust apparatus according to any one of claims 1 to 4, wherein: the wall of the combustion chamber is provided with an inclined plane, an air inlet side wall and an air outlet side wall, one end of the inclined plane is far away from the spark plug and is close to the end face of the cylinder head, the other end of the inclined plane inclines towards the spark plug, the air inlet side wall and the air outlet side wall start from the closest point of the inclined plane and the end face of the cylinder head and end at the end of the inclined plane close to the spark plug and are formed between the end face of the cylinder head and the edge of the inclined plane, and the length of the air outlet side wall is greater.

6. The 190F-192F cylinder head intake and exhaust system according to claim 5 wherein: the included angle between the inclined plane and the cylinder head mounting surface is set to be 12.5 degrees.

7. The 190F-192F cylinder head intake and exhaust system according to claim 6 wherein said intake passage is at an angle α of 36 ° to the bottom surface of the cylinder head body and said exhaust passage is at an angle β of 8 ° to the bottom surface of the cylinder head body.